Bolt action upper and lower receivers for a firearm

ABSTRACT

A bolt action upper receiver for use with a firearm is provided. The bolt action upper receiver includes a body portion having an aperture extending from the front end through the back end of the body portion; an opening on a bottom surface of the body portion. The opening allows for a bolt and bolt carrier to be operatively coupled within the body portion and further the opening allows for a projectile to be loaded within the upper receiver in response to operating a bolt action of the upper receiver. The body portion may be removably coupled to a lower receiver through a two pin connection. The lower receiver may include a recess, wherein the recess receives a protrusion coupled to a receiver end plate to eliminate or reduce turning of the stock. The upper receiver further comprises an attachment device for coupling a stock directly to the upper receiver.

CROSS REFERENCE TO RELATED APPLICATION

This application claims priority to U.S. Provisional Patent Application entitled “BOLT ACTION UPPER AND LOWER RECEIVERS FOR A FIREARM,” Ser. No. 62/279,721, filed Jan. 16, 2016, the disclosure of which is hereby incorporated entirely herein by reference.

BACKGROUND OF THE INVENTION

Technical Field

This invention relates generally to an upper and lower receiver and more particularly to a bolt action upper and lower receiver for a firearm.

State of the Art

Particular firearms, such as an AR15, utilize a gas-operation system. A gas-operation system is a system of operation used to provide energy to operate auto loading firearms. In gas-operation, a portion of high pressure gas from the cartridge being fired is used to power a mechanism to extract the spent case and chamber a new cartridge. Energy from the gas is harnessed through either a port in the barrel or trap at the muzzle. This high-pressure gas impinges on a surface such as a piston head of a bolt, wherein the bolt and bolt carrier are operatively coupled within an upper receiver to provide motion for unlocking of the action, extraction of the spent case, ejection, cocking of the hammer or striker, chambering of a fresh cartridge, and locking of the action.

Certain states and countries do not allow such weapons to be owned or sold legally within their borders. This limits the ability for someone to own an AR style firearm. Bolt action firearms require manual charging of the weapon prior to each firing. These weapons are generally not considered illegal in the previously discussed states and countries. Accordingly, there is a need for a bolt action upper receiver for a firearm.

DISCLOSURE OF THE INVENTION

The present invention relates to a bolt action upper receiver with a corresponding lower receiver for a firearm.

An embodiment includes a bolt action upper receiver for use with a firearm. The bolt action upper receiver comprises a body portion having an aperture extending from the front end through the back end of the body portion; an opening on a bottom surface of the body portion, wherein the opening provides access to the aperture extending through the body portion. The opening allows for a bolt and bolt carrier to be operatively coupled within the body portion and further the opening allows for a projectile to be loaded within the upper receiver in response to operating a bolt action of the upper receiver. The body portion may be removable coupled to a lower receiver through a two pin connection. The lower receiver may include a recess, wherein the recess receives a protrusion coupled to a receiver end plate. The recess engaged by the receiver endplate protrusion operates to eliminate or reduce turning of the stock. The upper receiver further comprises an attachment device for coupling a stock directly to the upper receiver.

Another embodiment includes a firearm comprising a bolt action upper receiver. The bolt action upper receiver comprises a body portion having an aperture extending from the front end through the back end of the body portion; an opening on a bottom surface of the body portion, wherein the opening provides access to the aperture extending through the body portion. The opening allows for a bolt and bolt carrier to be operatively coupled within the body portion and further the opening allows for a projectile to be loaded within the upper receiver in response to operating a bolt action of the upper receiver. The body portion may be removable coupled to a lower receiver through a two pin connection. The lower receiver may include a recess, wherein the recess receives a protrusion coupled to a receiver end plate. The recess engaged by the receiver endplate protrusion operates to eliminate or reduce turning of the stock. The upper receiver further comprises an attachment device for coupling a stock directly to the upper receiver.

The foregoing and other features and advantages of the present invention will be apparent from the following more detailed description of the particular embodiments of the invention, as illustrated in the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

A more complete understanding of the present invention may be derived by referring to the detailed description and claims when considered in connection with the Figures, wherein like reference numbers refer to similar items throughout the Figures, the Figures are not necessarily drawn to scale, and:

FIG. 1 is a perspective view of a bolt action upper receiver with a corresponding lower receiver coupled to a firearm, in accordance with embodiments of the present invention;

FIG. 2 is a side view of a bolt action upper receiver with a corresponding lower receiver coupled to a firearm, in accordance with embodiments of the present invention;

FIG. 3 is a perspective view of a lower receiver, in accordance with embodiments of the present invention;

FIG. 4 is top view of a lower receiver, in accordance with embodiments of the present invention;

FIG. 5 is a perspective view of an upper receiver, in accordance with embodiments of the present invention;

FIG. 6 is a side view of an upper receiver, in accordance with embodiments of the present invention;

FIG. 7 is a front view of an upper receiver, in accordance with embodiments of the present invention; and

FIG. 8 is a bottom view of an upper receiver, in accordance with embodiments of the present invention.

DETAILED DESCRIPTION OF EMBODIMENTS OF THE INVENTION

As discussed above, embodiments of the present invention relate to a bolt action upper receiver with a corresponding lower receiver for a firearm.

Referring to FIGS. 1-8, an embodiment of a bolt action upper receiver 10 is depicted coupled to a lower receiver 42 and coupled to a firearm 60 having a stock 62 coupled to the upper receiver 10, a barrel 64, a handguard 66, and a handle 68. Generally speaking, among many components, an upper receiver 10 comprises a body portion 12, having an aperture extending from the front end 20 through the back end 22 of the body portion 12. The upper receiver 10 comprises an opening or channel 44 extending through the body portion 12, wherein the opening or channel 44 is adjacent to and engages the aperture extending through the body portion 12. The opening or channel 44 allows for a bolt and bolt carrier to be operatively coupled within the body portion 12 and further the opening 44 allows for a projectile to be loaded within the upper receiver 10 in response to operating a bolt action of the upper receiver 10.

The body portion 12 of the upper receiver 10 may be removably coupled to a lower receiver 42 through a two pin connection. While it is shown that there is a two pin connection for removably coupling the upper receiver 10 to the lower receiver 42, it is contemplated that other connection types may be utilized to couple the upper receiver 10 to the lower receiver 42.

The upper receiver 10 comprises a front mount 27 having an aperture 24 extending there through and a rear mount 28 with an aperture 26 extending there through. The lower receiver 42 includes mounting holes 30 and 32, wherein front mount 27 of the upper receiver aligns its aperture 24 with the mounting holes 30 and allows a securing pin to extend through aligned holes to rotatably secure the upper receiver 10 to the lower receiver 42. The rear protrusion of the upper receiver aligns its aperture 26 with mounting holes 32 and allows a securing pin to extend through the aligned holes to couple the upper receiver 10 to the lower receiver 42. It will be understood that bolt action receiver 10 does not include an aperture for receiving a gas tube. Additionally, the channel or opening 44 extending through the body portion 12 is shallow and does not accept a gas key coupled to a bolt carrier.

The lower receiver 42 may include a recess 52 formed in a rear surface of the lower receiver 42, wherein the recess receives a protrusion coupled to a receiver end plate. The recess 52 engaged by the receiver endplate protrusion operates to eliminate or reduce turning of the stock. The upper receiver 10 further comprises an attachment device for coupling a stock directly to the upper receiver 10. For example, as shown in FIG. 5, the back end 22 of the upper receiver 10 may comprise threads, wherein the stock can be threadingly coupled to the back end 22 of the upper receiver. This is different from conventional AR-style rifles wherein the stock is coupled directly to the lower receiver 42.

In some embodiments, the stock may include a protrusion that corresponds to and engages the recess 52. In these embodiments, there is not a need for an endplate.

The lower receiver 42 comprises a magazine recess for receiving a magazine loaded with ammunition. The upper receiver may load and fire any type of caliber ammunition. Further, lower receiver 42 includes a recess 52, wherein the recess 52 is exposed when the upper receiver 10 is in the opened position rotated about the front pin connection of the upper receiver 10 with the lower receiver 42. The opened position provides opportunity to access the trigger and inner components of the lower receiver 42. Further, in order for a two pin connection between the upper receiver 10 and the lower receiver 42 to function properly, the protrusion of the receiver end plate needs to be able to move out of the recess 52, particularly if only the rear pin of the two pin connection system is removed. The recess may include an open upper end as shown in FIG. 3 thereby allowing the protrusion of the receiver end plate to move or slide out of the open upper end of recess 52.

The lower receiver 42 comprises an aperture 50, wherein the aperture 50 is threaded for receiving a tension screw. The tension screw operates to adjust the fit between the upper receiver 10 and lower receiver 42, wherein tightening the tension screw pushes against the rear mounting lug of the upper receiver and tightens the fit between the upper receiver 10 and the lower receiver 42. The tension screw is then covered by the grip. In other words, the tension screw provides the ability to adjust the fit of the upper receiver 10 with the lower receiver 42.

The upper receiver 10 further includes a discharge port 40 wherein spent casings are ejected from within the upper receiver 10 in response to a user operating the bolt action of the bolt action upper receiver 10.

Additional embodiment include a firearm 60 with the upper receiver 10 and lower receiver 42 described above coupled thereto. This provides for a bolt action AR-style firearm 60. This bolt action AR-style firearm 60 includes handguards 64, picatinny rail portions and the like for receiving AR-style accessories to provide the look and feel of an assault rifle with a bolt action rifle.

In embodiments, the upper receiver 10 may include slots for receiving a side charger in order the charge the weapon and ready it for firing. It is also contemplated that other charging handles may be utilized.

The embodiments and examples set forth herein were presented in order to best explain the present invention and its practical application and to thereby enable those of ordinary skill in the art to make and use the invention. However, those of ordinary skill in the art will recognize that the foregoing description and examples have been presented for the purposes of illustration and example only. The description as set forth is not intended to be exhaustive or to limit the invention to the precise form disclosed. Many modifications and variations are possible in light of the teachings above without departing from the spirit and scope of the forthcoming claims. 

1. A bolt action upper receiver for use with a firearm, the bolt action upper receiver comprising: a body portion having an aperture extending from the front end through the back end of the body portion; and an opening on a bottom surface of the body portion, wherein the opening provides access to the aperture extending through the body portion; the opening allows for a bolt and bolt carrier to be operatively coupled within the body portion and further the opening allows for a projectile to be loaded within the upper receiver in response to operating a bolt action of the upper receiver.
 2. The bolt action upper receiver of claim 1, wherein the body portion may be removably coupled to a lower receiver through a two pin connection.
 3. The bolt action upper receiver of claim 2, wherein the lower receiver includes a recess, wherein the recess receives a protrusion coupled to a receiver end plate.
 4. The bolt action upper receiver of claim 3, wherein the recess engaged by the receiver endplate protrusion operates to eliminate or reduce turning of the stock.
 5. The bolt action upper receiver of claim 4, wherein the protrusion coupled to the receiver end plate moves out of an open upper end of the recess of the lower receiver in response to rotation of the upper receiver about a from pin of a the two pin connection.
 6. The bolt action upper receiver of claim 1, wherein the upper receiver further comprises an attachment device for coupling a stock directly to the upper receiver.
 7. The bolt action upper receiver of claim 1, further comprising a channel extending through the body portion, wherein the channel is adjacent to and engages the aperture extending through the body portion.
 8. The bolt action upper receiver of claim 7, wherein the channel allows a bolt and bolt carrier to be operatively coupled within the body portion and allows for a projectile to be loaded within the upper receiver.
 9. The bolt action upper receiver of claim 7, wherein the channel is of a size and shape to prevent a gas key coupled to a bolt carrier to be received within the upper receiver.
 10. The bolt action upper receiver of claim 1, wherein the upper receiver does not include a hole for acceptance of a gas tube.
 11. A firearm comprising: a lower receiver; and a bolt action upper receiver coupled to the lower receiver, the bolt action upper receiver comprising: a body portion having an aperture extending from the front end through the back end of the body portion; and an opening on a bottom surface of the body portion, wherein the opening provides access to the aperture extending through the body portion; the opening allows for a bolt and bolt carrier to be operatively coupled within the body portion and further the opening allows for a projectile to be loaded within the upper receiver in response to operating a bolt action of the upper receiver.
 12. The firearm of claim 11, wherein the body portion may be removably coupled to a lower receiver through a two pin connection.
 13. The firearm of claim 11, wherein the lower receiver includes a recess, wherein the recess receives a protrusion coupled to a receiver end plate.
 14. The firearm of claim 13, wherein the recess engaged by the receiver endplate protrusion operates to eliminate or reduce turning of the stock.
 15. The firearm of claim 11, wherein the upper receiver further comprises an attachment device for coupling a stock directly to the upper receiver.
 16. The firearm of claim 11, further comprising a stock coupled to the upper receiver.
 17. The firearm of claim 11, further comprising a barrel coupled to the upper receiver and a handguard coupled to the upper receiver, wherein the barrel extends through the handguard.
 18. A bolt action upper receiver and lower receiver assembly for use with a firearm, the assembly comprising: a bolt action receiver comprising: a body portion having an aperture extending from the front end through the back end of the body portion; and an opening on a bottom surface of the body portion, wherein: the opening provides access to the aperture extending through the body portion; the opening allows for a bolt and bolt carrier to be operatively coupled within the body portion and further the opening allows for a projectile to be loaded within the upper receiver in response to operating a bolt action of the upper receiver; and a lower receiver removably coupled to the upper receiver, the lower receiver including a recess, wherein the recess receives a protrusion coupled to a receiver end plate.
 19. The assembly of claim 18, wherein the body portion may be removably coupled to a lower receiver through a two pin connection.
 20. The assembly of claim 18, wherein the upper receiver further comprises an attachment device for coupling a stock directly to the upper receiver. 